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$378+ Cheap flights from Seattle (SEA) to Bilbao (BIO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BIO
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Bilbao are usually found in February or November, booked 47 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from Seattle to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Bilbao (BIO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

January

Cheapest in

February

Round-trip from

$657
(United Airlines)

One-way from

$622
(United Airlines)
Provider with most accurate pricing for Seattle/Tacoma Intl-Bilbao flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Bilbao flights.
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High demand for flights, 32% potential price rise
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Best time to find cheap flights, 43% potential price drop
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From Seattle/Tacoma Intl to Bilbao
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One-way flight from Seattle/Tacoma Intl to Bilbao
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Find flight deals from Seattle to Bilbao

Cheapest flights from Seattle to Bilbao
Explore the most affordable flight options available from Seattle to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Mytrip deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/22:35 pmSEA - BIO
3 stops23h 20mMultiple Airlines
Thu 12/127:00 amBIO - SEA
2 stops22h 26mMultiple Airlines
Deal found 11/20$876
This Justfly.com deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/217:00 pmSEA - BIO
1 stop31h 10mTurkish Airlines
Mon 12/212:10 pmBIO - SEA
1 stop37h 55mTurkish Airlines
Deal found 11/18$1,342
This American Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/11:16 amSEA - BIO
2 stops26h 34mAmerican Airlines
Thu 12/129:15 amBIO - SEA
2 stops21h 04mAmerican Airlines
Deal found 11/19$1,654

Find flights from Seattle to Bilbao within your budget

Customize your flight search to find flights from Seattle to Bilbao that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Mon 2/24

3:05 pm-6:05 pm

2 stops42h 00m

Bilbao

Wed 3/5

1:10 pm-2:30 pm

2 stops34h 20m

$601

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Mon 2/24

12:40 pm-5:20 pm

1 stop19h 40m

Bilbao

Wed 3/5

6:50 am-11:40 am

1 stop13h 50m

$612

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Mon 2/24

7:05 pm-6:05 pm

2 stops38h 00m

Bilbao

Wed 3/5

7:20 am-10:00 pm

3 stops23h 40m

$620

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Fri 1/3

2:00 pm-10:55 pm

1 stop23h 55m

Bilbao

Fri 1/10

1:05 pm-9:30 pm

2 stops41h 25m

$657

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Thu 1/9

1:35 pm-11:30 am

1 stop12h 55m

Bilbao

Wed 4/2

7:10 am-5:40 pm

1 stop19h 30m

$666

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 1/8

7:00 pm-11:10 am

1 stop31h 10m

Bilbao

Wed 5/28

6:25 pm-5:10 pm

1 stop31h 45m

$1,019

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Thu 1/9

7:11 am-8:30 am

2 stops16h 19m

Bilbao

Fri 5/30

9:15 am-9:35 pm

2 stops21h 20m

$1,124

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 3/12

3:15 pm-8:15 am

3 stops33h 00m

$378

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Wed 3/12

1:40 pm-11:30 am

1 stop13h 50m

$464

SeattleBilbao

SEA - BIO

SEABIO

Seattle/Tacoma Intl

Sat 1/4

7:15 am-10:55 am

2 stops42h 40m

$622

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 12 results
1
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Compare providers for flights from Seattle to Bilbao

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Bilbao in November.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Bilbao flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seattle-Bilbao flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Seattle-Bilbao flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Bilbao flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Bilbao flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Seattle to Bilbao

Get recent, data-driven insights about flights from Seattle to Bilbao including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Seattle to Bilbao?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Bilbao. Price data was last updated on November 15, 2024.

The best time to book flights from Seattle to Bilbao is 47 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Bilbao?

Currently, January is the cheapest month in which you can book a flight from Seattle to Bilbao (average of $536). Flying from Seattle to Bilbao in June is currently the most expensive (average of $1,184). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to BIO?

Find hourly flight availability from Seattle to Bilbao. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

It’s optimal to fly from Seattle to Bilbao at noon. By choosing this option you can save up to 8% on the cost of your flight, compared to a flight in the afternoon.

Rainfall in Bilbao by month

Plan your trip to Bilbao by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bilbao ranges from 2.4 - 5.6 inches per month. November is typically the wettest month, when rainfall can reach 5.6 in. July is typically the driest time to visit Bilbao when rainfall is around 2.4 in.

Temperature in Bilbao by month

Plan your trip to Bilbao by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bilbao, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Bilbao

Get insights into the airlines that provide service to Bilbao. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bilbao. Reviews last updated November 20, 2024.
KLM
7.8
Good
1,350 reviews

Boarding

7.9

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Food

7.3

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

KLM
7.8
Good
1,350 reviews
KLM
7.8
Good
1,350 reviews

Boarding

7.9

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Food

7.3

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Air France
7.4
Good
1,523 reviews
KLM
7.8
Good
1,350 reviews

Boarding

7.9

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Food

7.3

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Turkish Airlines
7.4
Good
3,915 reviews
KLM
7.8
Good
1,350 reviews

Boarding

7.9

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Food

7.3

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

United Airlines
7.4
Good
9,171 reviews
KLM
7.8
Good
1,350 reviews

Boarding

7.9

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Food

7.3

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

American Airlines
7.2
Good
10,000 reviews
KLM
7.8
Good
1,350 reviews

Boarding

7.9

Entertainment

7.2

Comfort

7.7

Overall

7.8

Crew

8.4

Food

7.3

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Bilbao. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Seattle to Bilbao round-trip?

    Cheapflights users have booked flights from Seattle to Bilbao round-trip from $657. Other airlines that can offer you cheap pricing are Air France, from $666, and Lufthansa, from $701. United Airlines is 43% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Seattle to Bilbao one-way?

    The cheapest airlines for a one-way flight from Seattle to Bilbao are United Airlines ($622), Lufthansa ($705), and Aer Lingus ($1,659).

  • Can I find deals for flights from Seattle to Bilbao that include hotel bookings?

    Yes. In addition to deals on Seattle to Bilbao flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Bilbao?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Bilbao.

  • Can I find deals for business class flights from Seattle to Bilbao?

    Yes. Cheapflights offers flight deals from Seattle to Bilbao by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Bilbao?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Bilbao (average of $536). Flying from Seattle to Bilbao in June is currently the most expensive (average of $1,184). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Seattle to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Seattle to Bilbao

Discover the top 5 airlines that operate flights from Seattle to Bilbao. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$526Average$1,181FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$662Average$1,063FlexibilityNo cancel feeOn-time76%
DeltaCheapest$692Average$1,188FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$796Average$1,225FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$930Average$1,358FlexibilityNo cancel feeOn-time69%
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